Meet the PRO TREK WSD-F21HR Smartwatch: a wearable gadget with heart rate monitor that measures your heart rate by flashing a LED light onto your wrist. It is ready for your running and hiking adventures and can display pace, distance, and HR. It can also show maps and your current location.
The WSD-F21HR can access Google apps, Strava, ViewRanger, and a whole lot more. It is water resistant to 50 meters.